Hot Cams Stage 1 Camshaft – Single-Cam Engine
This Stage 1 camshaft from Hot Cams is designed for single-cam engines and delivers improved power at all RPMs. It is compatible with stock valve springs, rockers, and the stock auto-decompression mechanism, making it a direct-replacement upgrade.
Performance Highlights
- Improved bottom-end and mid-range power increase over stock
- Performs well with stock airbox lid and exhaust
- Uses stock valve springs and rockers
- Uses stock auto-decompression mechanism
- Designed for low-end torque
- No core exchange required
Design & Construction
- Designed and dyno-proven in the USA
- Engineered using valvetrain software
- CNC machined from 8620 billet, case-hardened steel for precise fit and lobe profile
- High performance racing camshaft with Improved Throttle Response (ITR) technology
- Engineered as a drop-in cam using stock valve springs (unless otherwise noted)
Camshaft Specifications
| Specification | Intake | Exhaust |
|---|---|---|
| Duration (at 1mm) | 238.00° | 265.00° |
| Lift | 8.00 mm | 7.45 mm |
| Lobe Center | 104.50° | 98.50° |
| Valve Lash | 0.15 mm | 0.25 mm |
Not legal for use in California on pollution-controlled vehicles; race use only in California – waiver available.
Fits the following:
- Honda CRF150R: 2007, 2009, 2012-2016, 2018-2021, 2023, 2025
- Honda CRF150R Expert: 2016-2025
- Honda CRF150RB Expert: 2007-2009, 2012-2015